Belkacemi, Zoubir, Boumahrat, Zakaria, Foul, Ahmed Dhiyaeddine. (1405). Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators. هنرهای کاربردی, 13(3), 261-272. doi: 10.22075/jhmtr.2025.36208.1655
Zoubir Belkacemi; Zakaria Boumahrat; Ahmed Dhiyaeddine Foul. "Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators". هنرهای کاربردی, 13, 3, 1405, 261-272. doi: 10.22075/jhmtr.2025.36208.1655
Belkacemi, Zoubir, Boumahrat, Zakaria, Foul, Ahmed Dhiyaeddine. (1405). 'Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators', هنرهای کاربردی, 13(3), pp. 261-272. doi: 10.22075/jhmtr.2025.36208.1655
Belkacemi, Zoubir, Boumahrat, Zakaria, Foul, Ahmed Dhiyaeddine. Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators. هنرهای کاربردی, 1405; 13(3): 261-272. doi: 10.22075/jhmtr.2025.36208.1655

Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators

Journal of Heat and Mass Transfer Research
دوره 13، شماره 3 - شماره پیاپی 27، پاییز 2026، صفحه 261-272    اصل مقاله (798.43 K)
نوع مقاله: Full Length Research Article
شناسه دیجیتال (DOI): 10.22075/jhmtr.2025.36208.1655
نویسندگان
Zoubir Belkacemi* 1؛ Zakaria Boumahrat2؛ Ahmed Dhiyaeddine Foul2
1Departement of Physics, Faculty of Matter Sciences, Applied Energetic Physics Laboratory (LPEA), University of Batna 1, 05000 Batna, Algeria
2Department of Mechanical Engineering, Faculty of Technology Sciences, Constantine 1, Frères Mentouri University, Constantine 25000, Algeria
چکیده
Vortex generators (VGs) are widely employed to enhance heat transfer in channel flows by inducing vortices, with their performance strongly influenced by geometric parameters and flow conditions. This study numerically investigates the thermohydraulic performance of laminar flow (Re = 200–1200) in a rectangular microchannel (H = 0.26 mm) equipped with longitudinal vortex generators (LVGs) of reduced height (0.75H). The objective is to assess the impact of reduced LVG height on pressure loss and heat transfer enhancement, using water as the working fluid. Numerical simulations were validated against existing data, with deviations remaining below 10%, and were subsequently conducted for three LVG orientation angles (30°, 135°, and 150°). The results indicate that at Re = 1200, the LVGs increased the friction factor by up to 6% for 30° and 150° and 8% for 135°, while increasing the Nusselt number by up to 18% for 30° and 150° and 24% for 135°. The highest thermal performance factor of 1.21 was achieved at the 135° orientation for Re=1200, identifying it as the optimal configuration among those tested.
کلیدواژه‌ها
Fluid flow؛ Heat transfer؛ Laminar flow؛ Microchannels؛ Vortex generators
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